CN209586830U - A kind of combination valve - Google Patents

Abstract

The utility model provides a kind of combination valve comprising: valve base, and the first pilot head, the second pilot head and the third pilot head that are mounted on valve base；Wherein, valve base is equipped with primary air inlet, work tracheae, the first pilot port, the second pilot port and third pilot port；First pilot head, the second pilot head and third pilot head are respectively used to the first pilot port of opening and closing, the second pilot port and third pilot port；Work is intratracheally equipped with negative pressure mouth and positive pressure mouth, is equipped with vacuum spray head in valve base, the input terminal of vacuum spray head is connected to primary air inlet by the first pilot port, and the output end of vacuum spray head is in communication with the outside；The output end of vacuum spray head is equipped with adsorbent chamber, and adsorbent chamber is connected to negative pressure mouth by the second pilot port；It is additionally provided with decompression valve inlet on valve base and decompression valve outlet, primary air inlet are connected to decompression valve inlet, decompression valve outlet is connected to positive pressure mouth by third pilot port.Combination valve installation provided by the utility model is simple, feature-rich.

Description

A kind of combination valve

Technical field

The utility model belongs to Pneumatic Control Technology field more particularly to a kind of combination valve.

Background technique

Solenoid valve is the automatic foundamental element for controlling fluid, belongs to control element.Its working principle is to pass through The mechanical movement that the current switching of control electromagnet carrys out control valve core reaches control to be closed and start different ventholes Gas path on-off or commutation purpose.

Solenoid valve block or combination valve, therefore named think of justice, is that multiple solenoid valves are installed on jointly on valve seat (or cylinder manifold), In activation system, play the role of controlling gas path on-off, to achieve the purpose that control starting element movement, however, existing The function of combination valve in the market is limited, and installs more complicated.

Summary of the invention

The utility model be solve existing combination valve function it is limited, complicated technical problem is installed, a kind of peace is provided Fill simple, feature-rich combination valve.

For this purpose, the utility model provides a kind of combination valve comprising: valve base, and be mounted on the valve base First pilot head, the second pilot head and third pilot head；Wherein, the valve base is equipped with primary air inlet, work tracheae, the One pilot port, the second pilot port and third pilot port；First pilot head, second pilot head and the third guide Head is respectively used to open and close first pilot port, second pilot port and third pilot port；The work is intratracheally equipped with Negative pressure mouth and positive pressure mouth, the valve base is interior to be equipped with vacuum spray head, and the input terminal and the primary air inlet of the vacuum spray head are logical The first pilot port connection is crossed, the output end of the vacuum spray head is in communication with the outside；The output end of the vacuum spray head is equipped with Adsorbent chamber, the adsorbent chamber are connected to the negative pressure mouth by second pilot port；Pressure reducing valve is additionally provided on the valve base Entrance and decompression valve outlet, the primary air inlet are connected to the decompression valve inlet, the decompression valve outlet and the positive pressure Mouth passes through the third pilot port and is connected to.

In some embodiments provided by the utility model, first pilot head includes first coil, the first static iron core And first dynamic iron core；Second pilot head includes the second coil, the second static iron core and the second dynamic iron core；The third is first Top guide includes tertiary coil, third static iron core and third dynamic iron core；First dynamic iron core, second dynamic iron core and described Third dynamic iron core difference is mobilizable to be arranged in first pilot port, second pilot port and the third pilot port On, when the first coil is powered, first dynamic iron core is attracted by first static iron core to open first guide Mouthful, when second coil is powered, second dynamic iron core is attracted by second static iron core to open second guide Mouthful, when the tertiary coil is powered, the third dynamic iron core is attracted by the third static iron core to open the third guide Mouthful.

In some embodiments provided by the utility model, bleed passage, the vacuum spray are additionally provided on the valve base The output end of head is in communication with the outside by the bleed passage, and the both ends for losing heart the bleed passage are set as horn mouth.

In some embodiments provided by the utility model, the outer end of the bleed passage is equipped with muffler.

In some embodiments provided by the utility model, first is equipped between first pilot head and the valve base Pressing plate, is equipped with the second pressing plate between second pilot head and the valve base, the third pilot head and the valve base it Between be equipped with third pressing plate.

In some embodiments provided by the utility model, vacuum chamber is equipped in the valve base, the vacuum spray head is set It sets in the vacuum chamber, the vacuum chamber is sealed by technique plug.

According to combination valve provided by the utility model, set there are three pilot head, it, can be with by the work of three pilot heads It realizes multiple functions, is broken for example, combination valve provided by the utility model can be used as vacuum feed valve, vacuum generator, vacuum Bad valve, pipe break valve etc. use, and realize the solenoid valve together as one of aforementioned four function, save space, quick for installation, By air inlet (that is, primary air inlet) air inlet, positive/negative-pressure friendship is can be realized in escape pipe (that is, work tracheae) outlet Temporary substitute is made.Meanwhile combination valve provided by the utility model is additionally provided with decompression valve inlet and decompression valve outlet, in connection pressure reducing valve one When playing work, the accurate pressure regulation of positive pressure can also be realized.

The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description In become obvious, or recognized by the practice of the utility model.

Detailed description of the invention

Fig. 1 is the schematic perspective view for the combination valve that the utility model one embodiment provides；

Fig. 2 is the air inlet face structural schematic diagram for the combination valve that the utility model one embodiment provides；

Fig. 3 is the outlet face structural schematic diagram for the combination valve that the utility model one embodiment provides；

Fig. 4 is the structural blast schematic diagram for the combination valve that the utility model one embodiment provides；

Fig. 5 is the gas circuit structure design diagram in the valve base for the combination valve that the utility model one embodiment provides； And

Fig. 6 is the part gas circuit structure design section view in the valve base for the combination valve that the utility model one embodiment provides Figure.

Specific embodiment

The technical issues of in order to keep the utility model solved, technical solution and beneficial effect are more clearly understood, below In conjunction with accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific implementation described herein Example is only used to explain the utility model, is not used to limit the utility model.

Referring to Fig.1 shown in -6, a specific embodiment of the utility model provides a kind of combination valve comprising: valve base 1, and the first pilot head 11, the second pilot head 12 and the third pilot head 13 that are mounted on valve base 1；Wherein, valve base 1 It is equipped with primary air inlet 2, work tracheae 3, the first pilot port 14, the second pilot port 15 and third pilot port 16；First guide First 11, second pilot head 12 and third pilot head 13 are respectively used to the first pilot port 14 of opening and closing, the second pilot port 15 and third Pilot port 16；The tracheae 3 that works is interior to be equipped with negative pressure mouth 31 and positive pressure mouth 32, is equipped with vacuum spray head 4 in valve base 1, vacuum spray head 4 Input terminal is connected to primary air inlet 2 by the first pilot port 14, and the output end of vacuum spray head 4 is in communication with the outside；Vacuum spray head 4 Output end is equipped with adsorbent chamber 5, and adsorbent chamber 5 is connected to negative pressure mouth 31 by the second pilot port 15；Pressure reducing valve is additionally provided on valve base 1 Entrance 6 and decompression valve outlet 7, primary air inlet 2 are connected to decompression valve inlet 6, and decompression valve outlet 7 and positive pressure mouth 32 pass through third Pilot port 16 is connected to.

In turn, combination valve provided by the utility model at work, compressed air is accessed from primary air inlet 2, and in work Make to access tracheae on tracheae 3, the course of work can be briefly described as follows:

Firstly, the first pilot head 11 opens the first pilot port 14, in turn, compressed air is followed by primary air inlet 2 and the After one pilot port 14, the compressed gas of high speed injection is generated into vacuum spray head 4, and then in the output end of vacuum spray head 4, in turn Jet stream is formed in the output end of vacuum spray head 4, generation volume inhales flowing, under the action of rolling up suction, so that the output end of vacuum spray head 4 The air of surrounding is constantly sucked away, and then so that the pressure in adsorbent chamber 5 is down to atmospheric pressure hereinafter, forming certain vacuum degree. The second pilot head 12 opens the second pilot port 15 simultaneously, and vacuum pipe shut-off valve (i.e. pilot valve locating for the second pilot head 12) is beaten It opens, since the negative pressure mouth 31 in work tracheae 3 is to be connected to by the second pilot port 15 with adsorbent chamber 5, in the second pilot port 15 In the case where unlatching, the air at negative pressure mouth 31 is also constantly sucked away, and then negative pressure mouth 31 enters vacuum start-up operation.

Further, simultaneously closed off in the first pilot port 14 and the second pilot port 15, third pilot port 16 open the case where Under, the compressed air accessed from primary air inlet 2 enters decompression valve inlet 6, the sky by the accurate pressure regulation of external pressure regulator valve, after pressure regulation Gas enters in combination valve provided by the utility model from decompression valve outlet 7, at this time since third pilot port 16 is to open, pressure regulation Air afterwards enters positive pressure mouth 32 by third pilot port 16, and then realizes positive pressure work, to destroy vacuum.Of course, it is possible to manage Solution, if destroyed without accurate pressure regulation, compressed gas directly passes through after entering decompression valve outlet 7 from decompression valve inlet 6 Third pilot port 16 works into positive pressure mouth 32.It is simultaneously closed off in the first pilot port 14 and third pilot port 16, second first When leading the unlatching of mouth 15, (since the output end of vacuum spray head 4 is arranged in adsorbent chamber 5, and vacuum is sprayed for work tracheae 3 and atmosphere connection First 4 output end is connected to the external world, and therefore, in the idle situation of vacuum spray head 4, adsorbent chamber 5 is communicated with the atmosphere, together Sample, the negative pressure mouth 31 in tracheae 3 that works be connected to by the second pilot port 15 with adsorbent chamber 5, therefore, work tracheae 3 and and Atmosphere), and then reset function may be implemented.

It will be seen from the foregoing that combination valve provided by the utility model (is equipped with negative pressure by a work tracheae 3 in it Mouth 31 and positive pressure mouth 32), positive/negative-pressure alternation may be implemented, meanwhile, vacuum can be formed when negative pressure mouth 31 works, into And combination valve provided by the utility model can be used as vacuum feed valve, vacuum generator, air admission valve come using, meanwhile, Can also be used as pipe break valve come using.Moreover, can be subtracted by decompression valve inlet 6 and decompression valve outlet 7 with external outside Pressure valve (or pressure regulator valve), so that combination valve provided by the utility model increases the function of the accurate pressure regulation of positive pressure.

It is understood that the utility model is not particularly limited the specific gas circuit arrangement of the inside of combination valve, It can arrange various gas circuit connection structures in valve base 1 according to actual needs, as long as being able to achieve above-described The course of work.

For example, the gas inside the valve base 1 for the combination valve that the specific embodiment that Fig. 5 show the utility model provides Line structure arrangement, wherein runic route shows simplified gas circuit trend, referring to fig. 5, it can be seen that first second In the case where leading the opening of mouth 15, for compressed air after the access of primary air inlet 2, compressed air enters vacuum chamber 9 through gas circuit path A, Then the external world is drained by vacuum nozzle, in turn, since volume inhales the effect of flowing, so that the pressure in adsorbent chamber 5 is down to atmosphere Hereinafter, forming certain vacuum degree, work port 3 is connected by gas circuit path D (it passes through the second pilot port 15) with adsorbent chamber 5 pressure It is logical, and then work gas mouth 3 can be made to enter vacuum work.It is simultaneously closed off in the first pilot port 14 and the second pilot port 15, the In the case that three pilot ports 16 are opened, after the access of primary air inlet 2, compressed air enters external compressed air through gas circuit path B Pressure reducing valve (or pressure regulator valve), be connected to through gas circuit path C (its pass through third pilot port 16) with the port 3 that works after pressure regulation, into And work gas mouth 3 can be made to enter positive pressure and worked.

In combination valve provided by the utility model, the first pilot head 11, the second pilot head 12 and third pilot head 13 are divided The first pilot port 14, the second pilot port 15 and third pilot port 16 Yong Yu not opened or closed, it is to be understood that this is practical Novel specific structure and type for the first pilot head 11, the second pilot head 12 and third pilot head 13 is not particularly limited, It can use the various common guide structures in this field.

In some embodiments provided by the utility model, referring to shown in Fig. 4, the first pilot head 11 includes first coil 111, the first static iron core 112 and the first dynamic iron core 113, the second pilot head 12 include the second coil 121, the second static iron core 122 And second dynamic iron core 123, third pilot head 13 include tertiary coil 131, third static iron core 132 and third dynamic iron core 133, First dynamic iron core 113, the second dynamic iron core 123 and third dynamic iron core 133 distinguish mobilizable be arranged in the first pilot port 14, second In pilot port 15 and third pilot port 16, when first coil 111 is powered, the first dynamic iron core 113 is inhaled by the first static iron core 112 It closes to open the first pilot port 14, when the second coil 121 is powered, the second dynamic iron core 123 is attracted by the second static iron core 122 to beat The second pilot port 15 is opened, when tertiary coil 131 is powered, third dynamic iron core 133 is attracted by third static iron core 132 to open third Pilot port 16.

That is, in this embodiment, the first pilot head 11, the second pilot head 12 and third pilot head 13 are respectively adopted Be electromagnetic priority valve structure, main working principle is known to those skilled in the art, the utility model to this not It is repeated again.

Further, in some embodiments provided by the utility model, referring to shown in Fig. 4, the first pilot head 11 and valve It is equipped with the first pressing plate 114 between pedestal 1, the second pressing plate 124, third pilot head are equipped between the second pilot head 12 and valve base 1 Third pressing plate 134 is equipped between 13 and valve base 1.

It is understood that vacuum spray head 4 can be in communication with the outside by various structures or gas circuit, the utility model pair This is not particularly limited.Preferably, in some embodiments provided by the utility model, referring to shown in Fig. 6, on valve base 1 also Equipped with bleed passage 8, the output end of vacuum spray head 4 is in communication with the outside by bleed passage 8, meanwhile, at the both ends of bleed passage 8 It is set as horn mouth 81, pressure-air can preferably be excluded by horn mouth 81.

To reduce the noise generated when pressure-air is discharged in vacuum spray head 4, in some embodiments of the utility model, ginseng According to shown in Fig. 3, Fig. 4 and Fig. 6, muffler 82 is equipped in the outer end of bleed passage 81.It is understood that the specific knot of muffler Structure and working principle are known to those skilled in the art, and the utility model repeats no more this.

It is understood that vacuum spray head 4 can be by various structure settings inside valve base 1, the utility model pair This is not particularly limited.In some embodiments provided by the utility model, vacuum chamber 9, vacuum spray head 4 are equipped in valve base 1 It is arranged in vacuum chamber 9, vacuum chamber 9 is sealed by technique plug 10.

According to combination valve provided by the utility model, sets there are three pilot head, (opened by the work of three pilot heads Or close), multiple functions may be implemented, for example, combination valve provided by the utility model can be used as vacuum feed valve, vacuum produces Raw device, air admission valve, pipe break valve etc. use, and realize the solenoid valve together as one of aforementioned four function, save empty Between, it is quick for installation, by air inlet (that is, primary air inlet 2) air inlet, escape pipe (that is, the tracheae 3 that a works) outlet, i.e., Positive/negative-pressure can be achieved to work alternatively.Meanwhile combination valve provided by the utility model is additionally provided with decompression valve inlet 6 and decompression valve outlet 7, when connection pressure reducing valve works together, it can also realize the accurate pressure regulation of positive pressure.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition The concrete meaning of language in the present invention.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ", The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot Structure, material or feature are contained at least one embodiment or example of the utility model.In the present specification, to above-mentioned art The schematic representation of language may not refer to the same embodiment or example.Moreover, description specific features, structure, material or Person's feature can be combined in any suitable manner in any one or more of the embodiments or examples.

While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that: These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principles of the present invention and objective And modification, the scope of the utility model are defined by the claims and their equivalents.

Claims (6)

1. a kind of combination valve characterized by comprising valve base, and be mounted on the valve base the first pilot head, Two pilot heads and third pilot head；Wherein, the valve base is equipped with primary air inlet, work tracheae, the first pilot port, second Pilot port and third pilot port；First pilot head, second pilot head and the third pilot head are respectively used to open Close first pilot port, second pilot port and third pilot port；The work is intratracheally equipped with negative pressure mouth and positive pressure Mouthful, vacuum spray head is equipped in the valve base, the input terminal and the primary air inlet of the vacuum spray head pass through described first first Mouth connection is led, the output end of the vacuum spray head is in communication with the outside；The output end of the vacuum spray head is equipped with adsorbent chamber, the suction Attached chamber is connected to the negative pressure mouth by second pilot port；Decompression valve inlet and pressure reducing valve are additionally provided on the valve base Outlet, the primary air inlet are connected to the decompression valve inlet, and the decompression valve outlet and the positive pressure mouth pass through the third Pilot port connection.

2. combination valve according to claim 1, which is characterized in that first pilot head includes first coil, and first is quiet Iron core and the first dynamic iron core；Second pilot head includes the second coil, the second static iron core and the second dynamic iron core；Described Three pilot heads include tertiary coil, third static iron core and third dynamic iron core；First dynamic iron core, second dynamic iron core and The third dynamic iron core difference is mobilizable to be arranged in first pilot port, second pilot port and the third guide On mouth；When the first coil is powered, first dynamic iron core is attracted to open described first first by first static iron core Mouth is led, when second coil is powered, second dynamic iron core is attracted to open described second first by second static iron core Mouth is led, when the tertiary coil is powered, the third dynamic iron core is attracted first to open the third by the third static iron core Lead mouth.

3. combination valve according to claim 1, which is characterized in that bleed passage is additionally provided on the valve base, it is described true The output end of empty spray head is in communication with the outside by the bleed passage, and the both ends of the bleed passage are set as horn mouth.

4. combination valve according to claim 3, which is characterized in that the outer end of the bleed passage is equipped with muffler.

5. combination valve according to claim 1, which is characterized in that be equipped between first pilot head and the valve base First pressing plate is equipped with the second pressing plate, the third pilot head and the valve bottom between second pilot head and the valve base Third pressing plate is equipped between seat.

6. combination valve according to claim 1, which is characterized in that be equipped with vacuum chamber, the vacuum spray in the valve base In the vacuum chamber, the vacuum chamber is sealed by technique plug for head setting.